The " drush cim" and " drush cex" commands are used for importing and exporting configuration changes from one environment to another environment. drush cim (Configuration Import) The drush cim command is used to import configuration changes from the configuration synchronization directory ( sync folder). This will import all configuration files from the default sync directory. drush cex (Configuration Export) The drush cex command is used to export the current configuration of your Drupal site into the configuration synchronization directory . This Drush command is used to transfer configuration changes seamlessly, ensuring that no details are missed. It allows us to track all configuration changes at each stage of the process.